Merge pull request #202 from paczian/master

speed improvement
support sorting jobs by field in GET /job api call
Merge pull request #203 from wtangiit/master

support sorting jobs by field in GET /job api call
GET /job api: resolving conflit in query by fields and retrieving active jobs
Merge pull request #204 from wtangiit/master

job requery related fix: resolving conflict in querying by fields and retrieving active/suspend/registered jobs
updating clientgroup doesn't require job suspended
in recovering the queue: suspended jobs recovered as suspended
discard workunit when receiving signal from server (no matter running or moving data)
Merge pull request #205 from wtangiit/master

misc updates
added sorting and filtering to asynch tables
added asynch mapping to table